Home / 156,606.53-216,117.15-84,986.55

Finding the Fourth Proportional to 156,606.53, 216,117.15 and 84,986.55

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Solution

The fourth proportional to 156,606.53, 216,117.15 and 84,986.55 is: 117,281.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,606.53 : 216,117.15 = 84,986.55 : x
  2. Step 2: Convert to fraction form
    156,606.53/216,117.15 = 84,986.55/x
  3. Step 3: Cross multiply
    156,606.53x = 216,117.15 × 84,986.55
  4. Step 4: Simplify right side
    156,606.53x = 18,367,050,974.33
  5. Step 5: Solve for x
    x = 18,367,050,974.33/156,606.53
  6. Step 6: Final answer
    x = 117,281.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.